Sad-iron.



No. 733,616. JATBNTEDJULY 14,1903. D. R BLAIR & G. KIRBY.

SAD IRON.

APPLICATION FILED JUNE 27, 1902.

N0 MODEL.

no. mm.

UNITED STATES iatented July 14, 1903.

PATENT OFFIC DUNCAN RAM'sAY BLAIR AND CHARLES KIRBY, or BIRMINGHAM,

ENGLAND.

SAD-lRON:

SPECIFICATION forming part of Letters Patent ivo. "Acacia, aae-d m I4, 1905.

Application filed June 27, 1902. Serial No. 113,470. (No model.)

To all whom, it may concern.-

Be it known that we, DUNCAN RAMSAY BLAIR, secretary, residing at 94 Bull street, and CHARLES KIRBY, handironmakers engineer, residing at 7 6 Osborn road, Sparkbrook, Birmingham, in the county of War wick, England, subjects of the King of Great Britain and Ireland, have invented certain new and useful Improvements in Sad-Irons, of which the following is a specification. This invention has reference to that class of sad-irons (for household work, laundry, tailoring, or the like) which is heated by the internal combustion of charcoal or other such carbonaceous fuel in blocks or pieces pressed or otherwise. The objects of the invention are, principally, first, the production of an iron that is without a chimney; second, whose interior is well supplied with air for combustion; third, that has an air-regulator for controlling combustion; fourth, that has speciallyarranged parts for getting rid of dust and ash, so as to give off a better bottom heat; fifth, that is cooler to the users hand; sixth, that has special arrangements for combustion and heating effect at the toe, and,seventh, that has special lid-locking arrangements.

The accompanying drawings illustrate an iron made in accordance with our invention. Figure 1 is a longitudinal elevation. Fig. 2 is a longitudinal sectional elevation. Fig. 3 is a plan of the body part with the lid removed. Fig. l is a half plan of the lid-lining viewed from below. Fig. 5 is a portion of a plan outline, showing the lid-locking arrangement. Fig. 6 is a rear end elevation showing both the air and ash doors shut. Fig. 7 is a vertical transverse section on the line X Y in Figs. 2 and 3, showing the passages in the lid-lining for the escape of hot gases, as indicated by the arrows. Fig. 8 is a vertical section of the lid and its lining, showing the air-passages for cooling the lid, the arrows showing the direction of the air; and Fig. 9 is a rear end elevation showing the air-door fully opened and the ash-door closed, and Figs. 10 and 11 show detached views of the spring-washer D The same letters are used to indicate the same parts in all the figures.

The body part A of the iron is hollow, and it may be of the ordinary shape in plan. In elevation, however, the body part A is highest at the toe A, so that it may there carry a proportionally extra amount of fuel, as well as induce a movement of air thereto within the body.

At the base A of the iron we arrange an interior tunnel-like air-passage B, open at each end at B and B and tapering and extending to within a short distancesay about an incl1-of the end of the toe A. This tunnel has its sides cast solid with the base A of the iron and formed by a number of projections B less in height as they approach the toe end A. These projections B form the ends of a series of ribs B also cast solid with the base A The ribs B which keep the fuel off the fioor and allow air to approach it underneath, point toward the airpassage B, which also forms the exit for the ash when the toe end B is elevated and the rear doors are open. The top B of the tunnel is slotted or made as a grid, through which air passes to the overhead fuel; but the bulk of the air passes to the fuel at the sides of the tunnel, the heat from which is more immediately conducted down to the base, either through the projections B or through the ribs B. The rear wall of the iron A has a doorwayaperture at B opening into the tunnel. A screw D passes through this wall above the aperture and pivotally secures on the outside two doors D D separated by a springwasher D while within the iron the screw serves to secure the top or grate B in place. The door D is but a frame open on one side, the lower part of which effectually prevents the ashes from coming out while the iron is in a horizontal or other working position. This door D is held by friction of its entire surface against the rear wall of the iron and is provided with a projecting operating-pin D to enable the user to overcome this friction and move the door to one side to permit the ready removal of the ashes that have collected. The door D is an air-door fitting, when closed, into the open frame of door D. The spring-washer D forces this door away from the iron, producing a slight frictional contact between the head of the screw D and a portion of the door sufficient to hold the door in whatever position it may be made to occupy, but at all times with less than the friction holding the door D. An operatingpin D, protruding farther than the pin D is fastened to this door. IVhen entire central air-draft is desired, the door D is placed in position shown in Fig. 9. When ashes are to be removed, the ash-door D is moved into similar position, the iron turned on end and shaken, and then either pin D or D is turned back until the door D abuts against stop D It will be seen that moving the pin D to the position for ash-ejecting will also move the door D to that position, as that door fits within the open frame D, which for convenience we term a door. On moving the door D to the closed position the open-frame door D will also be closed. The door D may have an upwardly extending lug D to give a slightly-increased surface friction.

The sides and back of the iron are corrugated in the interior, (see Fig. 3,) so as to allow air to approach to or gas to escape from the burning fuel.

In the upper heel end of the body lugs E carry the lid F by a hinge-pin, the said lid being made as follows: The toe end F is curved to correspond to the raised toe of the body part, and it is fitted with alocking-catch carried by a lever G, pivoted at G, the said catch engaging in a slot or saw-cut G2 at the toe of the iron. The lever G is bent up and provided with a knob at Ge to allow the lever to be operated. The arrangement of the iron to coact withthis locking means, higher at the toe and with curved walls and adapted to be slit across the higher portion, enables me to make an iron free from projections across its interior, and so aids in casting The lid F has secured to its under side, but with an air-space between, a lining-plate H, fastened to the lid with screws F F. This lining-plate II extends across the iron (see Figs. 7 and S) and has formed alongits outer edges recesses orpassages H and 1-1 the former, II, being of semicircular form, Fig. 4, opening upwardly and outwardly, Fig. 7, from the interior of the iron to the atmosphere, while the passages H Fig. 8, open from the space between the lid and lining-plate to the atmosphere.

In the operation of ironing the heat from the charcoal will normally rise through the openings 11, as shown by the arrows, Fig. 7, though should the iron be moved briskly over the ironing-board air will be forced into the openings either on one side or the other and heated more or less before combining with the charcoal to aid combustion. Baffle-ridges H extend across the upper surface of the liningplate to prevent the hot gases rising at the heel or too and passing between the lid and lining-plate.

having raised portions B at their inner ends,

and a grate over said raised portions, the ribs being arranged diagonally to the longitudinal center line to cause the intervening channels between the ribs to deliver their ashes to the common doorway, substantially as described.

2. A sad-iron comprising a hollow body part, a doorway at one end thereof, a grid and projecting ribs to form a central tunnel, the said projecting ribs cast on the bottom of the iron diagonal to said tunnel, said diagonals extendin g outwardly 011 each side of the longitudinal tunnel toward the toe, and the grid resting on the inner ends of the ribs, substantially as described.

3. A sad-iron,comprising a hollow body part, a number of projecting diagonal ribs cast in one with and extending along and near the longitudinal center line from the heel toward the toe, and a grate overthe inner ends of said ribs to form a central tunnel, substantially as described.

4. A sad-iron, comprising a hollow body part, a number of projecting ribs extending diagonally from near the longitudinal center line, said ribs being higher at their inner ends, and a grate over said inner ends to form a central tunnel, substantially as described.

5. A sad-iron having an air and ash opening through the rear wall of the iron, an ash-door fitting against the body of the iron, and open at one side, a pivot therefor, an air-door on said pivot adapted to fit into the ash-door through said side opening, and a spring-washer between the two doors, substantially as described.

6. A sad-iron having a hollow body part, a raised nose therefor, a saw-cut across the nose, a lid and lining-plate, both similarly raised, the lining-plate resting across the said body part, an d a locking-lever mounted beneath the lid, one end being adapted to engage with the saw-cut, substantially as described.

7. A sad-iron having a hollow body part, a lid therefor, a lining-plate carried by the lid and extending across and above the body part,openings from between the lid and liningplate to the atmosphere along both sides of the lid and recesses in the lining-plate opening from the interior of the iron upwardly and outwardly to the atmosphere along both sides of the iron, substantially as described.

In testimony whereof we aflix our signatures in presence of two witnesses.

3LAIR. 

